Southern California high school senior Jake Davidson made headlines last month when he asked Sports Illustrated model Kate Upton to his prom in a YouTube clip that went viral. But when Kate passed due to scheduling conflicts, supermodel Nina Agdal, the girlfriend ofVoice coach and Maroon 5 heartthrob Adam Levine, jumped right in, telling In Touch, “He seemed like a nice guy, so I grabbed the opportunity.”

Nina, a Danish-born 21-year-old, arrived at Jake's house on May 23 for the big night. “He gave me a huge smile and said, ‘Hi,’” she tells the mag. “He was a gentleman,” she adds, and admits, “Other guys could learn something from him.”

So what about Adam? Jake confesses that the night "was super casual,” knowing his long-term chances were slim. But “she knows,” he says, “she has a standing invitation for dinner whenever she’s in LA.”

For more from Jake and Nina on prom and to see how the supermodel prepped for the big night, pick up this week’s issue of In Touch, on newsstands now!